Section effective July 1, 1968, see section 41 of Puspan. L. 90–629, set out as a note under section 2751 of this title.

For delegation of functions of the President under this section, with certain conditions, see section 1(h) of Ex. Ord. No. 13637, Mar. 8, 2013, 78 F.R. 16129, set out as a note under section 2751 of this title. Functions were previously delegated by Ex. Ord. No. 11958, which was formerly set out as a note under section 2751 of this title and was revoked, subject to a savings provision, by section 4 of Ex. Ord. No. 13637.